Kindly share the correct methodology to carry out SHGC calculation for an inclined glazed façade in criterion 13 (GRIHA Version 3). How shall the shading projection be calculated?

Query

Kindly share the correct methodology to carry out SHGC calculation for an inclined glazed façade in criterion 13 (GRIHA Version 3). How shall the shading projection be calculated?

Solution

In case of inclined shading device, the inclined part of the shading has to be converted into an equivalent horizontal shading device (same vertical shadow angle). Once that is completed, the ECBC methodology can be applied to derive the projection factor.